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Title: Shock-driven discrete vortex evolution on a high-Atwood number oblique interface

Here, we derive a model describing vorticity deposition on a high-Atwood number interface with a sinusoidal perturbation by an oblique shock propagating from a heavy into a light material. Limiting cases of the model result in vorticity distributions that lead to Richtmyer-Meshkov and Kelvin-Helmholtz instability growth. For certain combinations of perturbation amplitude, wavelength, and tilt of the shock, a regime is found in which discrete, co-aligned, vortices are deposited on the interface. The subsequent interface evolution is described by a discrete vortex model, which is found to agree well with both RAGE simulations and experiments at early times.
Authors:
ORCiD logo [1] ; ORCiD logo [2] ; ORCiD logo [2] ; ORCiD logo [2] ; ORCiD logo [2] ;  [3] ; ORCiD logo [2] ; ORCiD logo [2] ; ORCiD logo [2] ; ORCiD logo [2] ; ORCiD logo [2] ;  [2] ;  [2] ; ORCiD logo [2] ; ORCiD logo [4] ;  [5]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Michigan, Ann Arbor, MI (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Lockheed-Martin, Syracuse, NY (United States)
  4. Santa Fe Institute, Santa Fe, NM (United States)
  5. Univ. of Michigan, Ann Arbor, MI (United States)
Publication Date:
Report Number(s):
LA-UR-18-20128
Journal ID: ISSN 1070-664X
Grant/Contract Number:
AC52-06NA25396; NA0002956
Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 25; Journal Issue: 3; Journal ID: ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1481147
Alternate Identifier(s):
OSTI ID: 1429126

Rasmus, Alexander Martin, Di Stefano, Carlos A., Flippo, Kirk Adler, Doss, Forrest William, Kline, John L., Hager, Jon D., Merritt, Elizabeth Catherine, Desjardins, Tiffany R., Wan, Willow Chilim, Cardenas, Tana, Schmidt, Derek William, Donovan, Patrick Mark, Fierro, Franklin, Martinez, John Israel, Zingale, Jonathan S., and Kuranz, Carolyn Christine. Shock-driven discrete vortex evolution on a high-Atwood number oblique interface. United States: N. p., Web. doi:10.1063/1.5021800.
Rasmus, Alexander Martin, Di Stefano, Carlos A., Flippo, Kirk Adler, Doss, Forrest William, Kline, John L., Hager, Jon D., Merritt, Elizabeth Catherine, Desjardins, Tiffany R., Wan, Willow Chilim, Cardenas, Tana, Schmidt, Derek William, Donovan, Patrick Mark, Fierro, Franklin, Martinez, John Israel, Zingale, Jonathan S., & Kuranz, Carolyn Christine. Shock-driven discrete vortex evolution on a high-Atwood number oblique interface. United States. doi:10.1063/1.5021800.
Rasmus, Alexander Martin, Di Stefano, Carlos A., Flippo, Kirk Adler, Doss, Forrest William, Kline, John L., Hager, Jon D., Merritt, Elizabeth Catherine, Desjardins, Tiffany R., Wan, Willow Chilim, Cardenas, Tana, Schmidt, Derek William, Donovan, Patrick Mark, Fierro, Franklin, Martinez, John Israel, Zingale, Jonathan S., and Kuranz, Carolyn Christine. 2018. "Shock-driven discrete vortex evolution on a high-Atwood number oblique interface". United States. doi:10.1063/1.5021800.
@article{osti_1481147,
title = {Shock-driven discrete vortex evolution on a high-Atwood number oblique interface},
author = {Rasmus, Alexander Martin and Di Stefano, Carlos A. and Flippo, Kirk Adler and Doss, Forrest William and Kline, John L. and Hager, Jon D. and Merritt, Elizabeth Catherine and Desjardins, Tiffany R. and Wan, Willow Chilim and Cardenas, Tana and Schmidt, Derek William and Donovan, Patrick Mark and Fierro, Franklin and Martinez, John Israel and Zingale, Jonathan S. and Kuranz, Carolyn Christine},
abstractNote = {Here, we derive a model describing vorticity deposition on a high-Atwood number interface with a sinusoidal perturbation by an oblique shock propagating from a heavy into a light material. Limiting cases of the model result in vorticity distributions that lead to Richtmyer-Meshkov and Kelvin-Helmholtz instability growth. For certain combinations of perturbation amplitude, wavelength, and tilt of the shock, a regime is found in which discrete, co-aligned, vortices are deposited on the interface. The subsequent interface evolution is described by a discrete vortex model, which is found to agree well with both RAGE simulations and experiments at early times.},
doi = {10.1063/1.5021800},
journal = {Physics of Plasmas},
number = 3,
volume = 25,
place = {United States},
year = {2018},
month = {3}
}